SANTA CLARA — Santa Clara police on Thursday released footage of a 32-year-old Washington man who went missing while attending the San Francisco 49ers game Monday night.

Ian Powers, 32, of Spokane, Wash., was last seen at a San Francisco 49ers game at Levi’s Stadium in Santa Clara on Monday night. (Courtesy of the Santa Clara Police Department)

The 19-second video clip shows Ian Powers exiting Levi’s Stadium on the NRG Solar Bridge, head down and eyes fixed on his cellphone.

Powers attended the football game with his girlfriend while traveling from Spokane to Los Angeles, with a planned stop in Antioch to visit family. His girlfriend told police he left his seat to use the restroom during the fourth quarter and never returned.

Police said Powers last communicated with his family about 10 p.m. Monday near Old Glory Lane and Great America Parkway.

Family and friends have said Powers’ disappearance is “completely out of character.”

Powers’ vehicle was found where he parked it near the stadium. There were no signs of foul play.

The ground search for Powers continued Thursday, with officers asking businesses along Great America Parkway for any surveillance footage that might show where Powers went after leaving the stadium, said Capt. Wahid Kazem. Plans to do a flyover were scrapped due to poor air quality caused by the Camp Fire in Butte County.

“We will continue to work tomorrow and through the weekend conducting interviews, reviewing and re-reviewing data and trying to put together a timeline of his activity once he left his family,” Kazem said.

Police said Powers was last seen wearing a red 49ers T-shirt, red 49ers hat and blue jeans.

Anyone with information about Powers’ whereabouts is asked to contact Santa Clara police at 408-615-5580.